There are different teats to suit different babies. That is why Difrax has a wide range of silicone teats: odourless and flavourless. Small, medium and large sizes available. Small=for normal drinkers from birth or fast drinkers (Thin feeds), Medium= From 3 months, or if your baby drinks too slow from a small teat (Thin and Thick feeds, Large= From 3 months, or if your baby drinks too slowly from a medium teat (Thick feeds). Available in Wide and Standard range. Difrax has chosen to make its teats from silicone. Silicone is odourless and flavourless and easy to boil. What's more, there is no risk of latex Allergy. The special soft finish on our teats helps your baby to get a better grip when sucking. Fits with Wide S-bottles.